# You have a solution of KNO3 containing 28 g KNO3 in 100 g H2O at 30 degree C. Is the solution saturated or unsaturated? How many phases will be present in the solution? If saturated how much salute remains undissolved? (Help)

Apr 22, 2018

We have no data...

#### Explanation:

Nitrates TEND to be soluble species...

And here we gots a concentration of ....

$\frac{\frac{28 \cdot g}{101.10 \cdot g \cdot m o {l}^{-} 1}}{100 \cdot m L \times {10}^{-} 3 \cdot L \cdot m {L}^{-} 1} = 2.77 \cdot m o l \cdot {L}^{-} 1$.

This site reports prodigious solubility....i.e. $360 \cdot g \cdot {L}^{-} 1$ at $20$ ""^@C...and it would be higher at $30$ ""^@C. And so, on this basis this solution is $\text{UNSATURATED}$ with respect to potassium nitrate: i.e. the solution contains an amount of solute LESS than that amount which would be in equilibrium with undissolved solute.